To assist with military and aviation procurement, the MK-1 Life Preserver may also be referenced under various Alternate Part Numbers (APNs) assigned by different manufacturers. APNs vary based on size and color, with common references including MD3040-COM, I446NAV, and L446NAV part series, ensuring compatibility across multiple procurement systems.
Additionally, common CAGE Codes associated with this product include 78673 (Switlik Parachute Company Inc.), 63806 (Stearns Inc.), and 1LV23 (Mustang Survival MFG, Inc.), ensuring traceability and compliance with U.S. military and government procurement standards. This NSN-approved aviation survival vest is trusted by naval aviators, flight deck personnel, Coast Guard rescue teams, and emergency responders worldwide.